CN105320881B - Optical power reduction protection method and device - Google Patents
Optical power reduction protection method and device Download PDFInfo
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- 230000003287 optical effect Effects 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 50
- 230000009467 reduction Effects 0.000 title claims abstract description 7
- 238000004891 communication Methods 0.000 claims abstract description 58
- 239000013307 optical fiber Substances 0.000 claims abstract description 54
- 230000002159 abnormal effect Effects 0.000 claims abstract description 32
- 230000005856 abnormality Effects 0.000 claims abstract description 19
- 239000000835 fiber Substances 0.000 claims description 14
- 230000008569 process Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 12
- 238000012545 processing Methods 0.000 description 10
- 238000012217 deletion Methods 0.000 description 7
- 230000037430 deletion Effects 0.000 description 7
- 230000004913 activation Effects 0.000 description 5
- 230000008439 repair process Effects 0.000 description 5
- 230000009849 deactivation Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000003213 activating effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention discloses an optical power reduction (APR) protection device.A controller is in communication connection with a source board and a destination board; the source board and the destination board are connected in an asymmetrical and unidirectional mode through optical fibers; the destination board is used for sending a communication abnormal message containing destination board information to the controller when the optical signal abnormality is detected; the controller is used for finding corresponding source board information according to the destination board information and sending a first control instruction to the source board according to the source board information; the source plate is used for reducing the output power of the optical signal. The invention also discloses an APR protection method.
Description
Technical Field
The present invention relates to optical communication technologies, and in particular, to an Automatic Power Reduction (APR) protection method and apparatus.
Background
In an optical fiber communication system, optical power is lost in any abnormal situation such as breakage of an optical fiber or removal of an optical fiber connector. For eye safety reasons, the system is required to provide an automatic APR procedure in case of loss of optical power within one optical transmission segment of the main optical channel. Generally, when detecting that Optical signals of all main Optical channels are lost, an Optical Transport Network (OTN) system starts an APR process and closes all amplifiers in an affected Optical Transmission Section (OTS); when the optical signal is restored, the operation of the optical Line Amplifier (LA) is restored again. In this way it can be ensured that the optical power in the optical fiber is within the safety level requirements in the closed situation.
Fig. 1 is a schematic diagram of a conventional APR process, and as shown in fig. 1, the APR process of the related art is disposed in a communication path composed of LAs between a west site and an east site, and the conventional APR process is deactivated according to the following principle: when the point a optical fiber is broken, and the receiving port R2 detects that the continuity of the signal in the OTS segment is lost, the output power at the transmitting port T2 is reduced, which in turn causes the continuity of the signal in the OTS segment at the receiving port R1 to be lost, so that the output power at the transmitting port T1 is reduced. In this way, it is ensured that the optical power in the OTS section in which the failed point a is located is at a safe level. The activation principle of the existing APR process is as follows: the transmitting port T1 sends out a restart pulse signal, the receiving port R2 sends out an optical signal with a similar restart pulse power level after receiving the restart pulse signal, and the transmitting port T1 does not send out the restart pulse signal any more but normally sends out the optical signal after receiving the optical signal with the similar restart pulse power level at the receiving port R1.
An Optical Amplifier (Optical Amplifier, OA) also exists in the non-main Optical channel in the west station or the east station, and abnormal conditions such as Optical fiber breakage, Optical fiber connector pulling-out and the like also occur, so that when an engineer repairs the Optical fiber of the non-main Optical channel in the station, or when a tester performs an Optical fiber connector plugging test operation of the non-main Optical channel in the station, there is a potential threat to human eyes. However, in the existing ITU-t g.664 standard, only the APR process of the bidirectional symmetric path composed of LAs between the OTS layers of the main optical channel is limited, and the requirements for activating and deactivating the APR process of the asymmetrical and unidirectional path in the site cannot be met.
Disclosure of Invention
In view of this, embodiments of the present invention are expected to provide a method and an apparatus for protecting an optical power reduction APR, which can solve the problem that the prior art cannot meet the requirements of activating and deactivating an APR process of an asymmetric and unidirectional path within a site.
The technical scheme of the embodiment of the invention is realized as follows:
the embodiment of the invention provides an APR (optical power reduction) protection device, which comprises: the source board and the destination board are in asymmetric unidirectional connection through optical fibers; wherein,
the destination board is used for sending a communication abnormal message containing destination board information to the controller when the optical signal abnormality is detected;
the controller is used for finding corresponding source board information according to the destination board information and sending a first control instruction to the source board according to the source board information;
and the source plate is used for reducing the output power of the optical signal according to the received first control instruction.
Further, the source board and the destination board are located in the same station.
Further, the controller is further configured to store a correspondence between the source board and the destination board.
Further, the apparatus further comprises: the network manager is used for generating the corresponding relation between the source board and the destination board according to the source board information, the destination board information and the optical fiber connection relation, and sending the corresponding relation between the source board and the destination board to the controller for storage; or, the network manager is configured to send source board information, destination board information, and an optical fiber connection relationship to the controller; correspondingly, the controller is further configured to generate a corresponding relationship between the source board and the destination board according to the source board information, the destination board information, and the optical fiber connection relationship.
Further, the network manager is further configured to receive source board information, destination board information, and fiber connection relationships input by a user before generating a corresponding relationship between a source board and a destination board, or before sending the source board information, the destination board information, and the fiber connection relationships to the controller.
Further, the destination board is specifically configured to detect that the optical signal abnormality exceeds a preset time threshold.
Further, the controller is further configured to send a third control instruction to the source board after the source board reduces the output power of the optical signal, receive a communication normal message containing destination board information sent by the destination board, find corresponding source board information according to the destination board information, and send a second control instruction to the source board according to the source board information;
the destination board is also used for sending a normal communication message containing destination board information to the controller after receiving the restart pulse signal sent by the source board;
the source board is further used for sending a restarting pulse signal to the destination board after receiving a third control instruction sent by the controller; and normally outputting optical signals after receiving a second control instruction sent by the controller.
Further, the board information includes a board address and/or a board port.
The embodiment of the invention also provides an APR protection method, which comprises the following steps:
when the target board detects that the optical signal is abnormal, sending a communication abnormal message containing target board information to the controller;
the controller finds corresponding source board information according to the destination board information and sends a first control instruction to the source board according to the source board information;
and the source plate reduces the output power of the optical signal according to the received first control instruction.
Further, before the destination board sends a notification message containing destination board information to the controller, the method further includes:
the controller stores the correspondence between the source board and the destination board.
Further, before the controller stores the correspondence between the source board and the destination board, the method further includes:
the network manager generates a corresponding relation between a source board and a destination board according to the source board information, the destination board information and the optical fiber connection relation, and sends the corresponding relation between the source board and the destination board to the controller;
or,
the network manager sends source board information, destination board information and optical fiber connection relation to the controller;
and the controller generates the corresponding relation of the source board and the destination board according to the source board information, the destination board information and the optical fiber connection relation.
Further, before the network manager generates a corresponding relationship between a source board and a destination board, or before the network manager sends source board information, destination board information, and a fiber connection relationship to the controller, the method further includes:
and the network manager receives the source board information, the destination board information and the optical fiber connection relation input by the user.
Further, the detecting of the optical signal abnormality by the destination board includes:
the target board detects that the optical signal abnormity exceeds a preset time threshold.
Further, after the source plate reduces the output power of the optical signal, the method further comprises:
the controller sends a third control instruction to the source board;
the source board sends a restarting pulse signal to the destination board;
the destination board sends a communication normal message containing destination board information to the controller;
the controller finds corresponding source board information according to the destination board information;
the controller sends a second control instruction to the source board according to the source board information;
the source plate normally outputs optical signals.
Further, the board information includes a board address and/or a board port.
According to the APR protection method and device provided by the embodiment of the invention, when the destination board detects that the optical signal is abnormal, the destination board sends the communication abnormal message containing destination board information to the controller, the controller finds the corresponding source board information according to the destination board information, and sends the first control instruction to the source board according to the source board information to instruct the source board to reduce the output power of the optical signal. Therefore, the embodiment of the invention can meet the processing requirements of activation and deactivation of the single-end APR process of the asymmetric and unidirectional path in the station, so that when an engineer repairs the optical fiber of the non-main optical channel in the station or when a tester performs test fiber pulling operation of the non-main optical channel in the station, the damage to human eyes caused by abnormal conditions such as optical fiber breakage, optical fiber connector pulling and the like in the station can be avoided.
Drawings
FIG. 1 is a schematic diagram of a conventional APR process;
FIG. 2 is a diagram illustrating an APR process according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an APR protection device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a basic processing flow of an APR protection method for optical signal abnormality according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a detailed processing flow of an APR protection method for optical signal abnormality according to an embodiment of the present invention;
fig. 6 is a schematic processing flow diagram of an APR protection method after exception recovery according to an embodiment of the present invention.
Detailed Description
It should be noted that, as shown in fig. 1, the APR process of the prior art is set in the path between the west site and the east site; the embodiment of the present invention is provided for a path in a west site or an east site, and fig. 2 is a schematic diagram of an ARP process provided in the embodiment of the present invention, and as shown in fig. 2, a board OA and a board X are both communication devices in the same site, where the board X is a generic name of a communication device in a site that has a strict requirement on optical power.
Fig. 3 is a schematic structural diagram of an APR protection device according to an embodiment of the present invention, and as shown in fig. 3, the APR protection device includes: a controller 13, a source board 11 and a destination board 12; wherein,
the controller 13 is connected with the source board 11 and the destination board 12 in a communication way; the source board and the destination board are connected in an asymmetrical and unidirectional mode through optical fibers;
the source plate 11 may be LA or OA as mentioned above; the destination plate 12 is a single plate connected downstream of the source plate 11.
The controller 13 is connected to the source board 11 and the destination board 12 through a communication bus, and a communication protocol used by the controller 13 and the source board 11 and the destination board 12 should satisfy a condition that a packet loss rate is less than 0.01%, and a communication response time of uplink and downlink of a single message is less than 10ms, for example: and a TCP communication protocol, a UDP communication protocol or a private communication protocol meeting the conditions is used, so that the activation and deactivation time of the APR process can be ensured not to be too long.
The destination board 12 is used for detecting the optical signal abnormality and sending a communication abnormality message containing destination board information to the controller;
the optical signal abnormality includes an abnormal phenomenon such as optical signal loss or optical signal loss weakening caused by optical fiber breakage, optical fiber connector pulling out or virtual connection.
Specifically, after receiving the optical signal, the destination board 12 determines whether the optical power of the optical signal is smaller than the optical power of the optical signal received during normal communication, and if so, determines that the optical signal received by the destination board 12 is abnormal, and further determines that the communication path between the source board 11 and the destination board 12 is abnormal, and immediately sends a communication abnormal message containing destination board information to the controller 13 after the destination board detects the abnormality; or, after detecting that the optical signal is abnormal for more than a preset time threshold value, for example, 500ms, sending a communication abnormal message containing the destination board information to the controller 13; wherein the destination board information comprises a destination board address and/or a destination board port.
The controller 13 is configured to find corresponding source board information according to the destination board 12 information, and send a first control instruction to the source board according to the source board information 11;
specifically, the controller 13 stores in advance a correspondence between the source board 11 and the destination board 12; wherein the source board information comprises a source board address and/or a destination board port.
It should be noted that, in order to facilitate the controller 13 to manage the source board information and the destination board information, the same standard is preferably used for the source board information and the destination board information, that is: only the board address, only the board port, or both the board address and the board port are included in the source board information and the destination board information. In particular, the source
The corresponding relationship between the board 11 and the destination board 12 can be any one of the following tables:
it should be noted that the embodiment of the present invention is preferably implemented in the manner of the 3 rd mode.
The controller 13 may use a linked list or a tree structure to store the corresponding connection relationship between the source board and the destination board, and taking the example that the source board information and the destination board information both include a board address and a board port, the node content of each linked list or tree includes four contents, namely a source board address, a source board port, a destination board address and a destination board port.
The controller 13 finds corresponding source board information according to the correspondence between the source board 11 and the destination board 12 and the communication abnormal message containing destination board information sent by the destination board, finds a corresponding source board 11 according to the source board information, and sends a first control instruction to the source board 11;
here, the first control instruction is to instruct the source board 11 to decrease the output power of the optical signal; and after the source board 11 receives the first control instruction, reducing the output power of the optical signal.
It should be noted that, in order to distinguish the control instructions of two different functions sent by the controller 13 in sequence, the control instruction sent by the controller 13 first may be referred to as a first control instruction, the control instruction sent by the controller 13 later may be referred to as a second control instruction, and so on.
And the source plate is used for reducing the output power of the optical signal according to the received first control instruction.
The embodiment of the invention detects the optical signal abnormality through the destination board, sends the communication abnormality message containing destination board information to the controller, finds corresponding source board information according to the destination board information through the controller, and sends a first control instruction to the source board according to the source board information so as to instruct the source board to reduce the output power of the optical signal. Therefore, the embodiment of the invention can meet the processing requirements of activation and deactivation of the single-end APR process of the unidirectional path, so that when an engineer repairs the optical fiber of the communication path of the asymmetric unidirectional connection or when a tester performs the plugging and unplugging test operation of the optical fiber connector of the communication path of the asymmetric unidirectional connection, the damage to human eyes caused by abnormal conditions such as optical fiber breakage, optical fiber connector unplugging and the like in the path can be avoided.
Further, the source board 11 and the destination board 12 are located in the same station.
The source board 11 and the destination board 12 in the embodiment of the present invention may be single boards located in the same site, so that the embodiment of the present invention can meet the processing requirements of activation and deactivation of a single-ended APR process of an asymmetric and unidirectional path in a site, so that when an engineer repairs an optical fiber of a non-main optical channel in the site, or when a tester performs an operation of pulling out a test fiber of the non-main optical channel in the site, damage to human eyes due to abnormal conditions such as optical fiber breakage, optical fiber connector pulling-out, and the like occurring in the site can be avoided.
Further, the apparatus further comprises: a network manager 14;
the network manager 14 is connected with the controller 13 in a communication way; the connection between the network manager 14 and the controller 13 may be a wired connection, for example, through a communication bus. The communication protocol between the network manager 14 and the controller 13 may be a TCP communication protocol or a UDP communication protocol.
The network manager 14 is configured to receive source board information, destination board information, and an optical fiber connection relationship input by a user, generate a corresponding relationship between a source board and a destination board according to the source board information, the destination board information, and the optical fiber connection relationship, and send the corresponding relationship between the source board and the destination board to the controller 13 for storage; or, sending the source board information, the destination board information and the optical fiber connection relation to the controller 13;
correspondingly, the controller 13 is further configured to generate a corresponding relationship between the source board and the destination board according to the source board information, the destination board information, and the optical fiber connection relationship.
Specifically, the user may input a plurality of source board information, destination board information, and fiber connection relationships at the same time, for example, the source board information, destination board information, and fiber connection relationships input by the user may be in the form of board information of the source board 1-board information of the destination board 1, board information of the source board 2-board information of the destination board 2, and the like, where the board information of the source board 1-board information of the destination board 1 indicates that a fiber communication path is formed between the source board 1 and the destination board 1.
After the communication abnormality is repaired, it is necessary to restore the communication to a normal state.
Further, the controller 13 is further configured to send a third control instruction to the source board 11, and after receiving the communication normal message that includes the destination board information and is sent by the destination board 12, and after finding the corresponding source board information according to the destination board information, send a second control instruction to the source board 11 according to the source board information;
the destination board 12 is further configured to send a communication normal message containing destination board information to the controller 13;
the source board 11 is further configured to send the restart pulse signal to the destination board 12; and normally outputs optical signals after receiving a second control instruction sent by the controller 13.
Specifically, the controller 13 sends a third control command to the source board 12, and the controller 13 may send the third control command to the source board 11 automatically and intermittently, for example, once every 100s or 300s, to the source board 11, or may manually control the source board 11, for example, after a maintenance person completes a communication line, the controller 13 is manually controlled to send the third control command to the source board 11; after receiving the restart pulse signal, the source board 11 sends the restart pulse signal to the destination board 12; the destination board 12 sends a communication normal message containing destination board information to the controller 13;
correspondingly, the controller 13 finds corresponding source board information according to the destination board information, and sends a second control instruction to the source board 11 according to the source board information;
here, the second control instruction is used to instruct the source board 11 to output the optical signal normally, and after receiving the second control instruction, the source board 11 outputs the optical signal at the normal power.
Further, the network manager 14 is further configured to send a deletion instruction to the controller 13; the deleting instruction comprises at least one of the following information: source board information, destination board information and optical fiber connection relation; correspondingly, the controller 13 is further configured to delete the corresponding relationship between the source board and the destination board according to the information included in the deletion instruction.
Specifically, when the path between the source board and the destination board does not need to be protected or the connection relationship between the source board, the destination board, and the optical fiber in the site changes, the network manager 14 sends a deletion instruction to the controller 13. Wherein the deleting instruction comprises at least one of the following information: source board information, destination board information and optical fiber connection relation; the controller 13 deletes the correspondence between the source board and the destination board according to the information included in the deletion instruction. For example, when the deletion instruction includes source board information, the controller finds a correspondence between a source board and a destination board stored in advance according to the source board information, and deletes the found correspondence.
For the above-mentioned APR protection device, an embodiment of the present invention further provides an APR protection method, and the APR protection method provided in the embodiment of the present invention is described in detail below with specific embodiments.
Fig. 4 is a schematic diagram of a basic processing flow of an APR protection method for optical signal abnormality according to an embodiment of the present invention, as shown in fig. 4, specifically including the following steps:
the optical signal abnormality includes an abnormal phenomenon such as optical signal loss or optical signal loss weakening caused by optical fiber breakage, optical fiber connector pulling out or virtual connection.
Specifically, after receiving the optical signal, the destination board determines whether the optical power of the optical signal is smaller than the optical power of the optical signal received during normal communication, and if so, determines that the optical signal received by the destination board is abnormal, and further determines that the communication path between the source board and the destination board is abnormal, and then the destination board immediately sends a communication abnormal message containing destination board information to the controller after detecting the abnormality, or sends the communication abnormal message containing destination board information to the controller after detecting that the optical signal abnormality exceeds a preset time threshold, for example, 500 ms;
wherein the destination board information comprises a destination board address and/or a destination board port.
102, the controller finds corresponding source board information according to the destination board information and sends a first control instruction to the source board according to the source board information;
specifically, the controller stores in advance a correspondence between the source board and the destination board; wherein the source board information comprises a source board address and/or a destination board port.
It should be noted that, in order to facilitate the controller to manage the source board information and the destination board information, it is preferable to use the same standard for the source board information and the destination board information, that is, to use a standard in which only the board address is included in the source board information and the destination board information, or only the board port is included in the source board information and the destination board information, or both the board address and the board port are included in the source board information and the destination board information.
Here, the first control instruction is to instruct the source board to decrease the output power of the optical signal; for detailed description, reference is made to the related description in the APR protection device provided in the foregoing embodiment of the present invention, and details are not repeated here.
And 103, reducing the output power of the optical signal by the source board according to the received first control instruction.
The technical principle and the generated technical effect of the method for protecting the APR when the optical signal is abnormal according to the embodiment of the present invention are similar to those of the APR protection device according to the embodiment of the present invention, and will not be described here again.
Fig. 5 is a schematic diagram of a detailed processing flow of an APR protection method for optical signal abnormality according to an embodiment of the present invention, as shown in fig. 5, specifically including the following steps:
specifically, the user may input a plurality of source board information, destination board information, and fiber connection relationships at the same time, for example, the source board information, destination board information, and fiber connection relationships input by the user may be in the form of board information of the source board 1-board information of the destination board 1, board information of the source board 2-board information of the destination board 2, and the like, where the board information of the source board 1-board information of the destination board 1 indicates that a fiber communication path is formed between the source board 1 and the destination board 1.
or the network manager sends the source board information, the destination board information and the optical fiber connection relation to the controller; and the controller generates the corresponding relation of the source board and the destination board according to the source board information, the destination board information and the optical fiber connection relation.
And 203, the controller stores the corresponding relation between the source board and the destination board.
Fig. 6 is a schematic processing flow diagram of an APR protection method after exception recovery according to an embodiment of the present invention, and as shown in fig. 6, the method specifically includes the following steps:
301, the controller sends a third control instruction to the source board;
specifically, the controller sends a third control command to the source board, and the controller may send the third control command to the source board automatically and intermittently, for example, once every 100s or 300s, or may manually control the source board, for example, after a maintenance worker completes a repair of a communication line, the controller is manually controlled to send the third control command to the source board.
and after receiving the restart pulse signal, the source board sends the restart pulse signal to the destination board. .
and step 305, normally outputting an optical signal by the source plate.
In addition, when the path between the source board and the destination board does not need to be protected or the connection relation between the source board, the destination board and the optical fiber in the station is changed, the network manager sends a deletion instruction to the controller; the deleting instruction comprises at least one of the following information: source board information, destination board information and optical fiber connection relation; and the controller deletes the corresponding relation between the source board and the destination board according to the information contained in the deletion instruction.
In the embodiments provided in the present invention, it should be understood that the disclosed method and apparatus can be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the modules is only one logical functional division, and other division manners may be implemented in practice, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the communication connections between the components shown or discussed may be through interfaces, indirect couplings or communication connections of devices or units, and may be electrical, mechanical or other.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for realizing the method embodiments can be completed by hardware related to program instructions, the program can be stored in a computer readable storage medium, and the program executes the steps comprising the method embodiments when executed; and the aforementioned storage medium includes: various media that can store program codes, such as a removable Memory device, a Read-Only Memory (ROM), or a Random Access Memory (RAM).
Alternatively, the embodiments of the present invention may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as independent products. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a network device or the like) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a variety of media that can store program codes, such as a removable storage device, a ROM, or a RAM.
The present invention is illustrated by the above-mentioned embodiments, but not limited thereto, and those skilled in the art should understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (11)
1. An optical power reduction (APR) protection device, the device comprising: the system comprises a controller, a source board, a destination board and a network manager, wherein the controller is in communication connection with the source board, the destination board and the network manager, and the source board and the destination board are in asymmetric unidirectional connection through optical fibers; wherein,
the network manager is used for generating a corresponding relation between a source board and a destination board according to source board information, destination board information and an optical fiber connection relation, and sending the corresponding relation between the source board and the destination board to the controller for storage; or, the network manager is configured to send source board information, destination board information, and an optical fiber connection relationship to the controller;
the destination board is used for sending a communication abnormal message containing destination board information to the controller when the optical signal abnormality is detected;
the controller is used for storing the corresponding relation between the source board and the destination board or generating the corresponding relation between the source board and the destination board according to the source board information, the destination board information and the optical fiber connection relation; finding corresponding source board information according to the destination board information, and sending a first control instruction to the source board according to the source board information;
and the source plate is used for reducing the output power of the optical signal according to the received first control instruction.
2. The apparatus of claim 1, wherein the source board and the destination board are located within the same station.
3. The apparatus of claim 1, wherein the network manager is further configured to receive source board information, destination board information, and fiber connection relationships input by a user before generating a corresponding relationship between a source board and a destination board or before sending the source board information, the destination board information, and the fiber connection relationships to the controller.
4. The device according to any of claims 1 to 3, wherein the destination board is specifically configured to detect that the optical signal is abnormal beyond a preset time threshold.
5. The device according to any one of claims 1 to 3,
the controller is further configured to send a third control instruction to the source board after the source board reduces the output power of the optical signal, receive a communication normal message containing destination board information sent by the destination board, find corresponding source board information according to the destination board information, and send a second control instruction to the source board according to the source board information;
the destination board is also used for sending a normal communication message containing destination board information to the controller after receiving the restart pulse signal sent by the source board;
the source board is further used for sending a restarting pulse signal to the destination board after receiving a third control instruction sent by the controller; and normally outputting optical signals after receiving a second control instruction sent by the controller.
6. The apparatus according to any of claims 1 to 3, wherein the destination board information comprises a destination board address and/or a destination board port; the source board information comprises a source board address and/or a source board port.
7. An APR protection method, characterized in that the method comprises:
the network manager generates a corresponding relation between a source board and a destination board according to source board information, destination board information and an optical fiber connection relation, and sends the corresponding relation between the source board and the destination board to a controller, and the controller stores the corresponding relation between the source board and the destination board; or the network manager sends the source board information, the destination board information and the optical fiber connection relation to the controller; the controller generates and stores the corresponding relation of the source board and the destination board according to the source board information, the destination board information and the optical fiber connection relation;
when the target board detects that the optical signal is abnormal, sending a communication abnormal message containing target board information to the controller;
the controller finds corresponding source board information according to the destination board information and sends a first control instruction to the source board according to the source board information;
and the source plate reduces the output power of the optical signal according to the received first control instruction.
8. The method of claim 7, wherein before the network manager generates the corresponding relationship between the source board and the destination board, or before the network manager sends the source board information, the destination board information, and the fiber connection relationship to the controller, the method further comprises:
and the network manager receives the source board information, the destination board information and the optical fiber connection relation input by the user.
9. The method of claim 7 or 8, wherein the destination board detecting the optical signal anomaly comprises:
the target board detects that the optical signal abnormity exceeds a preset time threshold.
10. The method of claim 7 or 8, wherein after the source plate reduces the output power of the optical signal, the method further comprises:
the controller sends a third control instruction to the source board;
the source board sends a restarting pulse signal to the destination board;
the destination board sends a communication normal message containing destination board information to the controller;
the controller finds corresponding source board information according to the destination board information;
the controller sends a second control instruction to the source board according to the source board information;
the source plate normally outputs optical signals.
11. Method according to claim 7 or 8, wherein the destination board information comprises a destination board address and/or a destination board port; the source board information comprises a source board address and/or a source board port.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410307247.8A CN105320881B (en) | 2014-06-30 | 2014-06-30 | Optical power reduction protection method and device |
| JP2016575779A JP6388674B2 (en) | 2014-06-30 | 2014-10-13 | Optical power reduction protection method and apparatus, and computer storage medium |
| EP14896355.6A EP3163768B1 (en) | 2014-06-30 | 2014-10-13 | Automatic power reduction protection method and device, and computer storage medium |
| PCT/CN2014/088508 WO2016000351A1 (en) | 2014-06-30 | 2014-10-13 | Automatic power reduction protection method and device, and computer storage medium |
| ES14896355T ES2711626T3 (en) | 2014-06-30 | 2014-10-13 | Procedure and protection device of automatic reduction of power, and means of computer storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410307247.8A CN105320881B (en) | 2014-06-30 | 2014-06-30 | Optical power reduction protection method and device |
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| Publication Number | Publication Date |
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| CN105320881A CN105320881A (en) | 2016-02-10 |
| CN105320881B true CN105320881B (en) | 2020-03-27 |
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| Country | Link |
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| EP (1) | EP3163768B1 (en) |
| JP (1) | JP6388674B2 (en) |
| CN (1) | CN105320881B (en) |
| ES (1) | ES2711626T3 (en) |
| WO (1) | WO2016000351A1 (en) |
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| CN109327262B (en) * | 2018-10-26 | 2022-02-18 | 武汉光迅科技股份有限公司 | APR (advanced peripheral component interconnect) implementation method and device under OSC (open channel monitoring) free monitoring mechanism |
| WO2023161976A1 (en) * | 2022-02-22 | 2023-08-31 | 日本電信電話株式会社 | Optical transmission system, transmission method of optical transmission system, and communication device |
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| EP1006682A2 (en) * | 1998-12-04 | 2000-06-07 | Lucent Technologies Inc. | Automatic power shut-down arrangement for optical line systems |
| JP2005295157A (en) * | 2004-03-31 | 2005-10-20 | Fujitsu Ltd | Signal light disconnection detecting method and optical amplifier using the same |
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| JP2010278493A (en) * | 2009-05-26 | 2010-12-09 | Nippon Telegr & Teleph Corp <Ntt> | Optical transmission system |
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| WO2006087804A1 (en) * | 2005-02-18 | 2006-08-24 | Fujitsu Limited | Optical communication device and optical communication control method |
| CN101453266B (en) * | 2006-10-09 | 2012-01-04 | 华为技术有限公司 | Laser security protection method and apparatus in optical communication system |
| JP2011019140A (en) * | 2009-07-10 | 2011-01-27 | Nec Corp | Optical communication apparatus, optical wavelength multiplexing transmission system, optical line failure detecting method, program therefor and program recording medium |
| CN101882958B (en) * | 2010-05-12 | 2014-12-10 | 中兴通讯股份有限公司 | APR (Automatic Power Reduction) protection method and device |
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2014
- 2014-06-30 CN CN201410307247.8A patent/CN105320881B/en active Active
- 2014-10-13 ES ES14896355T patent/ES2711626T3/en active Active
- 2014-10-13 EP EP14896355.6A patent/EP3163768B1/en active Active
- 2014-10-13 WO PCT/CN2014/088508 patent/WO2016000351A1/en active Application Filing
- 2014-10-13 JP JP2016575779A patent/JP6388674B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1006682A2 (en) * | 1998-12-04 | 2000-06-07 | Lucent Technologies Inc. | Automatic power shut-down arrangement for optical line systems |
| JP2005295157A (en) * | 2004-03-31 | 2005-10-20 | Fujitsu Ltd | Signal light disconnection detecting method and optical amplifier using the same |
| CN101238618A (en) * | 2005-03-04 | 2008-08-06 | Jds尤尼弗思公司 | Fiber break detection in the presence of raman amplification |
| JP2010278493A (en) * | 2009-05-26 | 2010-12-09 | Nippon Telegr & Teleph Corp <Ntt> | Optical transmission system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3163768A1 (en) | 2017-05-03 |
| WO2016000351A1 (en) | 2016-01-07 |
| JP6388674B2 (en) | 2018-09-12 |
| ES2711626T3 (en) | 2019-05-06 |
| EP3163768B1 (en) | 2018-11-28 |
| JP2017523698A (en) | 2017-08-17 |
| CN105320881A (en) | 2016-02-10 |
| EP3163768A4 (en) | 2017-07-26 |
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